Compilare: user.cpp: In function ‘bool verif(int)’: user.cpp:14:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] nrch+=f[pos][aux[i]]; ^ user.cpp:15:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] pos=lit[nrch][aux[i]]; ^ user.cpp: In function ‘int main()’: user.cpp:35:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] f[i][s[i]]++; ^ user.cpp:36:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] lit[f[i][s[i]]][s[i]]=i; ^ user.cpp:36:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] lit[f[i][s[i]]][s[i]]=i; ^